Mamedyarov goes after the h-pawn, but this will have serious consequences.
15. g2g4 A nice move to secure the knight's position. If Black captures it, then the g-file can be used. 15... e8f8  16. f1g2  16... g6c2  17. d1g1 Unconventional play is a speciality of Maghsoodloo's.